Files
DroidDeck/tools/linuxfs
Kurt Himebauch a0a68f7280 feat(steam): sync QAM controls and pass held Back shortcuts (#1621)
Steam's native QAM sliders now control Android brightness and media
volume, with device changes reflected back in Steam. Holding Android
Back for 700 ms sends a real held QAM button for Steam shortcuts. Single
and double taps keep the existing menu/QAM order and swap setting; the
double-tap window remains 500 ms.

- Discover native brightness through a guest backlight descriptor and
use Android's Modify system settings permission. Retain the latest
pending request until permission is granted or the session stops, with a
notification action for hidden sessions.
- Give DirectAudio and fallback AAudio sinks Android media volume/mute
callbacks, keeping software gain at unity. Recover when initial volume
state is absent or invalid, brightness acknowledgements differ or never
arrive, or the Display bridge is not ready yet.
- Forward other buttons while QAM is held in Steam Deck and Steam
Controller modes. Consume release after a hold and clear pending input
on overlays, focus loss, pause, disconnect, and teardown. The session
menu retains its compact Back choice without an explanatory paragraph.

Validation:
- Local ARM64 release build passed. The latest timing change passed 20
targeted input tests, including release at 600 ms remaining a tap. The
preceding full feature check passed 61 Android input/device-control
tests, with permission cases on API 28 and 33.
- 66 Linux Python/Node/C tests passed for device controls, audio
recovery, Steam compatibility, and file dialogs. Both audio sink modules
rebuilt with Android NDK 27.2.
- Release-signed integration build 14d12cf0 is installed on the unrooted
AYN Thor, carrying the Android/input changes through 749ade4a plus the
existing portrait changes. Device checks confirmed the configured
QAM/menu tap order, Back dismissal, removal of the inline menu
description, and held QAM overlapping X with clean release. Hands-on
testing confirmed this installed build works.
- Earlier Thor testing covered brightness permission and pending
requests, brightness synchronization in both directions, native volume
changes, hardware volume key readback, and both sink backends. Failure
recovery is covered by the automated tests above.

The subsequent queued-notification fix in 4d7ceb23 is covered by the
Linux regression suite and has not replaced the Thor install.

Bluetooth/wired output switching and other device models remain
untested. CI and CodeRabbit monitoring continue against the pushed head.
2026-10-26 13:46:14 -04:00
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2026-10-13 21:27:42 -04:00
2026-10-13 21:27:42 -04:00
2026-10-13 21:27:42 -04:00